<script setup>
import { addCategoryAPI, deleteCategoryAPI, listCategoryAPI, updateCategoryAPI } from '@/api/category';
import { Edit, Delete } from '@element-plus/icons-vue';
import { ElMessage, ElMessageBox } from 'element-plus';
import { onMounted, ref } from 'vue';

// 分类列表
const categoryList = ref([]);
// 是否显示弹窗
const dialogVisible = ref(false);
// 分类表单
const categoryForm = ref({
  categoryName: '',
  categoryAlias: ''
});
// 表单校验规则
const rules = {
  categoryName: [
    { required: true, message: '请输入分类名称', trigger: 'blur' }
  ],
  categoryAlias: [
    { required: true, message: '请输入分类别名', trigger: 'blur' }
  ]
};
// 弹窗的标题
const title = ref('');
// 列举分类
const listCategory = async () => {
  categoryList.value = (await listCategoryAPI()).data;
};
// 显示添加弹窗
const showAddDialog = () => {
  dialogVisible.value = true;
  title.value = '添加分类';
  categoryForm.value.categoryName = '';
  categoryForm.value.categoryAlias = '';
};
// 显示编辑弹窗
const showEditDialog = (row) => {
  dialogVisible.value = true;
  title.value = '编辑分类';
  categoryForm.value.categoryName = row.categoryName;
  categoryForm.value.categoryAlias = row.categoryAlias;
  categoryForm.value.id = row.id;
};
// 添加/编辑分类
const confirm = async () => {
  if (title.value === '添加分类') {
    const res = await addCategoryAPI(categoryForm.value);
    ElMessage.success(res.msg || '添加成功');
  } else {
    const res = await updateCategoryAPI(categoryForm.value);
    ElMessage.success(res.msg || '编辑成功');
  }
  listCategory();
  dialogVisible.value = false;
};
// 删除分类
const deleteCategory = (row) => {
  ElMessageBox.confirm('你确认要删除该分类信息吗?', '温馨提示', {
    confirmButtonText: '确认',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(async () => {
    const res = await deleteCategoryAPI(row.id);
    ElMessage.success(res.msg || '删除成功');
    listCategory();
  }).catch(() => {
    ElMessage.info('取消删除');
  });
};

onMounted(() => listCategory());
</script>
<template>
  <el-card class="page-container">
    <template #header>
      <div class="header">
        <span>文章分类</span>
        <div class="extra">
          <el-button type="primary" @click="showAddDialog">添加分类</el-button>
        </div>
      </div>
    </template>
    <el-table :data="categoryList" style="width: 100%">
      <el-table-column label="序号" width="100" type="index"> </el-table-column>
      <el-table-column label="分类名称" prop="categoryName"></el-table-column>
      <el-table-column label="分类别名" prop="categoryAlias"></el-table-column>
      <el-table-column label="操作" width="100">
        <template #default="{ row }">
          <el-button :icon="Edit" circle plain type="primary" @click="showEditDialog(row)"></el-button>
          <el-button :icon="Delete" circle plain type="danger" @click="deleteCategory(row)"></el-button>
        </template>
      </el-table-column>
      <template #empty>
        <el-empty description="没有数据" />
      </template>
    </el-table>
    <el-dialog v-model="dialogVisible" :title="title" width="30%">
      <el-form :model="categoryForm" :rules="rules" label-width="100px" style="padding-right: 30px">
        <el-form-item label="分类名称" prop="categoryName">
          <el-input v-model="categoryForm.categoryName" minlength="1" maxlength="10"></el-input>
        </el-form-item>
        <el-form-item label="分类别名" prop="categoryAlias">
          <el-input v-model="categoryForm.categoryAlias" minlength="1" maxlength="15"></el-input>
        </el-form-item>
      </el-form>
      <template #footer>
        <span class="dialog-footer">
          <el-button @click="dialogVisible = false">取消</el-button>
          <el-button type="primary" @click="confirm"> 确认 </el-button>
        </span>
      </template>
    </el-dialog>
  </el-card>
</template>

<style lang="scss" scoped>
.page-container {
  min-height: 100%;
  box-sizing: border-box;

  .header {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
}
</style>
